Pillow



FIG. 1 is a front perspective view of a pillow;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation view thereof; the rear elevation view being a mirror image thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a left side elevation view thereof; the right side elevation view being a mirror image thereof. 

CLAIM The ornamental design for a pillow, as shown and described. 